Cherry leaf cherry kernel literature search Cherry, also known as "cherry", belongs to a small deciduous tree of Prunus in Rosaceae, and its branches, leaves, roots and kernels can be used as medicine. Chinese medicine believes that cherry is sweet and sour, which can benefit the spleen and stomach, dispel wind and remove dampness, quench thirst and promote fluid production, and nourish liver and kidney. Leaves can strengthen the spleen and stimulate appetite, eliminate the stagnation of stomach cold, promote digestion and break the stagnation; Branches can cure stomach gas pain; Fruit can cure all kinds of diseases, replenish vitality and moisturize skin; Fruit juice can cure sweat spots and burns; Stones can sweat and penetrate measles. Because the iron content of cherry is the highest among all fruits, it is especially suitable for patients with iron deficiency anemia. Cherry leaf is PrunuspseudocerasusLindl. ), the original plant is a dicotyledonous plant of Prunus in Rosaceae. It is sweet and bitter, warm in nature, and has the effects of warming stomach, invigorating spleen, stopping bleeding and detoxifying. Can be used for treating diarrhea, cough, hematemesis, ulcer, dyspepsia due to stomach cold, trichomonas vaginalis, etc. Flavonoids in cherry leaves have a wide range of pharmacological activities, such as anti-inflammatory, anti-virus, antipyretic and liver protection, and also have significant pharmacological effects on cardiovascular and cerebrovascular diseases and tumors. Jason et al. designed L9(33) orthogonal test and extracted total flavonoids by supercritical CO2. Jiang Yihua et al. used L 16(45) orthogonal design and Duncan method to determine the best extraction conditions and yield of cherry flavonoids. Geng et al. extracted proanthocyanidins by ultrasonic wave, compared proanthocyanidins in cherry leaves, cherry seeds and pulp, and determined that cherry leaves were the best extraction materials. Proanthocyanidins are powerful antioxidants for scavenging free radicals. Their antioxidant and free radical scavenging abilities are 50 times that of VE and 20 times that of VC, and they can prevent and treat many diseases caused by free radicals, including heart disease and arthritis. In addition, procyanidins also have many functions, such as improving human microcirculation, improving visual function, preventing cardiovascular and cerebrovascular diseases, resisting radiation, and resisting tumor. Sunyeh systematically separated and purified the chemical constituents of cherry leaves by organic solvent extraction and column chromatography, and obtained four compounds. The chemical structures of these four compounds were determined by the determination of management constants and spectral analysis, and they were (3S, 5R, 6R, 7E, 9R)- macrobean -7- ene-3,5,6,9- tetraol -9-o-β. (I was isolated from Rosaceae for the first time, and II was isolated from cherry leaves for the first time. ) Jiang Dongli was extracted with organic solvent and separated by column chromatography.